Loose-leaf binder



$1153] 27, 1943. E. e um-m N 2,325,466

LOOSE-LEAF BINDER Fified April 29. 1942 Bi" AGE/V Patented July 27, 1943UNITED STATES; PATENT/OFFICE Harold E. Baug hman; Glendale, Califassignor to Aero Publishers, Inc., Glendale, Calif.

Application April 20, 1942, Serial N6. 439598 7 claims. (o1; 12 9 1) VThis invention relates to an improved looseleaf binder for note-booksand the like, and has accordingly an object of this invention toprovidean improved loose-leaf binding arrangement for semi-permanent records,such as catalogs; service manuals, or the like, wherein replacement orsupplemental material is to be added at in- V tervals. I I I In aprevious application, Serial No. 405,340,

filed August 4, 1941, I disclosed a loose-leaf binding arrangementwherein a series of continuous rings were formed with marginal metalstrips embedded in the backbone. Thepresent invention permits completeelimination of metal parts and also utilizes individual circular orsemi-circular rings which may be cut from hard plastic tubing of a widevariety of materials and colors.

It is accordingly an important object of this invention to provide animproved and simplified loose-leaf book backbone that eliminates theneed of any metal, and in which the leaf retain-.

ing rings can be rigidly supported and simply assembled in the backbone.

It is a further object of this invention to provide an improved andsimplified lose-leaf binder closely approximating the appearance andarrangement of a permanently bound book, the

filling material having open stemmed T slots per-.

mitting its ready insertion and removal from continuous rings retainedin fixed relationship to the back of the book, so that the book closelyresembles a bound book which can be imprinted in the conventionalmanner.

It is also an object .of this invention to provide an improved andsimplified loose-leaf book construction wherein continuous semi-circularsecuring rings are individually supported in a folded and gluedcardboard backbone by means of a supporting non-metallic strip out outto receive a portion of the rings and having resilient tongues struckfrom the strip projecting through the rings to lock them into theapertures in the strip, the cardboard being folded and glued over.

The circular the non-metallic strip and the free ends ofthe tongue toprovide a rigid backbone into which the rings' are'partially embedded;the assembly being further retainedin position by the usual inner liningof the book ccversand/or by a finishing fabric strip suitably slotted tobe applied over the securing rings in contact with the backbone. p

Other and further objects and advantages of my inventionwill becomeapparent as the description of the invention proceeds. V

In the accompanying drawing- Figure I is. a perspective view of anopened loose-leaf book showing the construction of thisinvention, partsof thelining material and backbone being broken away to disclose detailsof the construction; and including a preferred typical sheet of paperfor use therewith. Figure II is a fragmentary perspective of thenon-metallic strip which locates and supports the securingjrings, onering being shown in place in an aperture, in the strip.

Figure III is a cross-section of this device of' Figure-I showingdetails of the continuous securing rin gmounting, g

I Figure IV is a section through a modified form of this inventioncorresponding to FigureIII, the

7 ing conditions.

modification embodying the use of semicircular rings. r

Figure V is a section throughanother modified form of this inventionusinga semi-circular ring wherein the base is deformed to more solidlyseatin theaperture therefor. r r Asshown on the accompanying drawing,the invention relatesto" mounting continuous circular or. semi-circularD shaped-securing rings [0 relative to the covers and back of a bookstructure; boards ll, in the case of stiff covers, and a back l2, anoutside cover material l3 being applied thereto inthe usualmanner. toprovide hinge lines 14. The inside surfaces of the covers may befinishedwith lining paper l5, and an inside lining fabric l6 applied to the backif desired.

The. securing rings I!) are conveniently transverse sections of extrudedor cast plastic tubes which can be formed in a variety ofcross-sections.- Almost any thermo-setting-synthetic resin plasticthat'canbe suitably formed will be satisfactory for the-purpose,so--that the choice may be decided by cost and availability under exist-An example is phenolic formaldehyde resin or urea formaldehyde resin.

The use of continuous rings makes it desirable to use marginal T slotsin the filler material,

the 'bookcovers comprising cardboard.

. place.

which I have found can be readily inserted or stripped from the ringswithout damage to the sides of the T slot in the paper. Preferably thepaper filler should be peeled oil the rings with a movement aligned withthe axis thereof, rather than to pull the paper out from the free edgeof the book.

The securing rings are seated in apertures I! in a non-metallic strip.[8, a central tongue [9 being out into 'the strip to pass through thering and 10 press it into the apertures, the resiliency of the tonguebeing sufficient to permit it to be sprung upwardly to allow the ring tobe slid into place f under the free end of the tongue. I

The supporting strip may be made of plastic, 15. fibre board, or thinplywood, an exam-plebeing a plain or colored cellulose nitrate plastic.

In each of the forms of the inventionthe-suoporting strip i3 is bound ina triple layer of card-e board forming a backbone which may be an innerbackbone supplementing a cover backbone or may itself formthe solebackbone ofthe book bind ing. .The triple cardboard backbone comprises'a central. layer ZB underlying the supporting strip f It is convenientto. provide a fabric finish and cover strip I6 whichmay have slotted:margins to extend around the, rings Ill ormay be slotted as at 23 toslip over the. rin s to be glued in Such a cover strip acts as a trim tothe central portion of the inside of the covers, and

strengthens the hinge lines l4.

Figure III is a considerably enlarged crosssection wherein the several:layers of the backbone have been shown somewhat idealistioall-yforclearness. Actually the several cardboard layers are, glued togetherandto the securing 40 strip [8 to form a substantially solid-lamination,

so that the margins will be compressed into con-. tact; 1 I

It will be evident that circular rings l-llcan be used as in Figures Iand III or a'semi-circular or; D ring Ill as in Figures IV or V, thelatter having oi fset portions 24 in the stem or flat side which seatsolidly into the apertures inthe supporting strip I8.

I-t will thus'be' seen that I have invented an improved and simplifiedloose-leaf book wherein the'backof the book has the appearance of apermanently bound book since no rivets are required to retainjthesecuringrings'inposition, wherein the capacity ofthebook; is; increasedWithout liability -of'wedging the outside sheets thereof between thecovers andthe rings, andwherein the entire construction avoids the useofmetal while providing a substantial and rigid construction.

Having thus described my invention and the present preferred embodimentsthereof, I desire to 'emphasize the fact that'rnanymodifications may berestortedto in a manner limited only by a just interpretation of thefollowing claims.

Iclaimz- I 1'. In a loose-leaf book, the combination comprising abackbone carrying continuous securingrings partially embedded thereinand book covers hinged to the backbone, the backbone being-built up as aglued assemblage of cardboard folded over a non-metallic ring securingstrip having transverse apertures to support the rings and an integraltongue associated with each aperture and struck from the strip material,said tongue passing through the ring and serving to resil iently holdthe same in said apertures.

2. In a loose-leaf book, the combination comprising a backbone carryingfixed securing rings partially embedded therein and, book covers hingedto the backbone, the backbone being built up as an assemblage ofcardboard folded over a ring securing strip having transverse aperturesto support. the rings and an integral tongue associated, with each.aperture and struck from the strip material, said tongue passing throughthe ring and servin'gito resiliently hold the same in said apertures.

.3,. In aloose-leaf book, securing rings, a ring supporting backbonecomprising a ring securing strip; having transverse apertures to receiveand support, the rings and longitudinal tongues integrally struck from.the strip; material and bridging said: apertures, said tongues beingadapted to be sprung: upwardly for the insertion of the rings and toresiliently hold said rings seatedi'n the, apertures, in the strip, andcardboard-folded oversaid securing strip. to complete the backbonestructure. 7

.4. In a; loose-leaf; book, securing rings, a ring supporting backbonecomprising a ring securing strip having transverse apertures to receiveand support the ringsv and longitudinal tongues integrally struck fromthe strip, material and bridging said apertures, said tongues beingadapted to be sprung upwardly for the insertion of the rings and toresiliently hold said rings seated, in the apertures in the strip, andcardboard enveloping said securing. strip; in overlapping folds tosecure said tongue and rings in po- SitiOHz. V

5., In a, loose-leaf book, securing rings, a ring supporting backbonecomprising a ring securing strip having transverse apertures .to receiveand support the rings and longitudinal tongues integrally struck fromthe strip material and bridging said. apertures, said tongues, beingadapted to. be sprung upwardly for-the insertion of the rings and toresiliently hold said rings seatedin the apertures. in the strip.

6. In a loose-leaf book, a ring supporting backbone comprising a ringsecuring strip having transverse apertures to: receive and. support therings and longitudinal tongues integrally struck from the strip materialandb'ridging said apel tures, said tongues being adapted to be sprungupwardly for the insertion of the rings and to resiliently hold saidrings seated in the apertures in the strip, and pre-formed sec.1.*ing-ri.... s

each having offset base. adapted to seat in'

